Biofuel composition

Abstract

This invention relates to the fuels, and can be used in the national economy as a motor fuel equivalent by its physical and chemical properties to the oil motor fuel. The technical result of this invention is a biofuel produced, which allows to improve the combustion process efficiency in engine operation, increase engine power and reduce the startup time. In addition, this product can be used to reduce harmful emissions from the engine with significant cost reduction by using components based on low-cost large tonnage products available provided with domestic raw materials, including renewable ones, improve cold flow performance and increase the cetane number. This effect can be achieved by the biofuel as a mixture of dietilformal 40-80 by vol. % and glycerides of unsaturated fatty acids 20-60 by vol. %. Vegetable oils are used as glycerides of unsaturated fatty acids.

Description

CROSS-REFERENCE[0001]The present application claims convention priority to Russian Utility Patent Application No. 2014110978, filed on Mar. 21, 2014, entitled “”. This application is incorporated by reference herein in its entirety. The present application is a National Phase Entry of International Patent Application no. PCT / RU2014 / 000364, filed on May 21, 2014, entitled “BIOFUEL COMPOSITION”. This application is incorporated by reference herein in its entirety.FIELD OF THE INVENTION[0002]This invention relates to the fuels, and can be used in the national economy as a motor fuel equivalent by its physical and chemical characteristics to the oil motor fuel.BACKGROUND OF THE INVENTION[0003]Fuels currently used for diesel engines contain components mainly from crude oil.[0004]Natural gas and dimethyl ether are used as an alternative fuel for diesel engines. The main weakness of such fuels is their poor compatibility with oil diesel, since under normal conditions it generates gases. Fu...

AI Technical Summary

Benefits of technology

The patent describes a biofuel made of dietilformal and glycerides of unsaturated fatty acids. This biofuel can improve the quality of diesel fuel and reduce its cost. It has a higher cetane number and a lower pour point. The use of dietilformal, which is made from bioethanol, can help produce a more stable and cost-effective biodiesel fuel.

Problems solved by technology

The main weakness of such fuels is their poor compatibility with oil diesel, since under normal conditions it generates gases.

Furthermore, to operate the vehicle on these alternative fuels it is required its modification.

RME weak point is its high viscosity and high pour point, making impossible to use it at sub-zero temperatures.

A by-product of RME is glycerin, which can cause some problem in case of a large product output.

Such FAMEs can be used for the same applications as the rapeseed methyl ester, but they also have a negative impact on the diesel fuel quality, particularly on its performance at low temperatures, and furthermore, their use in fuels increases nitrogen oxides emissions.

The weak point is the process complexity and multi-stage nature, and high product cost.

The disadvantage of this invention is the high product cost.

Alcohols (butanol) and higher, which are very expensive, are the raw materials for proposed acetals.

Therefore, acetals derived from these alcohols, will also have a high cost.

Formals based on C4 alcohols and higher have relatively high viscosity and pour point, and in mixture with vegetable oils cannot be used at low temperatures.

Moreover, acetals described in the patent do not relate to renewable bio-products, therefore increase the level of greenhouse gases emissions into the atmosphere.

Images